body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, p, blockquote, th, td {
    margin: 0;
    padding: 0;
    text-align: center;
}

body {
    text-align: center;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
    color: #007bff; 
}

input, button, img {
    border: none;
}

.active {
    color: #409EFF;
}
